*,::before,::after {
    margin: 0;
    padding: 0;

    -webkit-tap-highlight-color:transparent;
    -webkit-box-sizing:border-box;

    box-sizing:border-box;
    /*-webkit-tap-highlight-color:transparent;*/
}

/*responsive font-size*/
.html{
    font-size:75px;
}

body{
    font-size:14px;
    color:#333;
    font-family:"MicroSoft YaHei","sans-serif";
}


ul,ol{
    list-style:none;
}

a{
    text-decoration:none;
    color: #333;
}

a:hover{
    color:#333;
}

input,textarea{
    border:none;
    outline:none;
    resize:none;

    -webkit-appearance:none;
}

.f_left{
    float:left;
}

.f_right{
    float:right;
}

.clearfix::after,
.clearfix::before{
    content:".";
    line-height:0;
    height:0;
    display:block;
    visibility:hidden;
    clear:both;
}

.m_r10{
    margin-right: 10px;
}
.m_l10{
    margin-left: 10px;
}
.m_t10{
    margin-top: 10px;
}
.m_b10{
    margin-bottom: 10px;
}

/*only for header*/
header{
    width:100%;
    height:1.2rem;
    background:#ff871b;
    position:fixed;
    z-index:10000;
}

header .logo{
    width:5rem;
    float:left;
    margin:0.3rem 0 0 0.5rem;
}

header .app{
    float:right;
    width:0.8rem;
    margin:0.15rem 0.2rem 0 0;
}

.Bcj_returnArrow {
    position: absolute;
    right: 0.26666667rem;
    bottom: 0;
    width: 1.33333333rem;
    height: 1.33333333rem;
    background-color: rgba(0, 0, 0, 0.6);
    border-radius: 50%;
    -webkit-border-radius: 50%;
    text-align: center;
    line-height: 1.33333333rem;
}
.Bcj_returnArrow span {
    position: relative;
    font-size: 0.4rem;
    color: #fff;
    animation: move 2s ease-in-out infinite;
    -webkit-animation: move 2s ease-in-out infinite;
    -moz-animation: move 2s ease-in-out infinite;
    -o-animation: move 2s ease-in-out infinite;
}
@keyframes move {
    0% {
        transform: translateY(0px);
    }
    70% {
        transform: translateY(-10px);
    }
    100% {
        transform: translateY(0px);
    }
}
@-webkit-keyframes move {
    0% {
        transform: translateY(0px);
    }
    70% {
        transform: translateY(-10px);
    }
    100% {
        transform: translateY(0px);
    }
}
@-moz-keyframes move {
    0% {
        transform: translateY(0px);
    }
    70% {
        transform: translateY(-10px);
    }
    100% {
        transform: translateY(0px);
    }
}
@-o-keyframes move {
    0% {
        transform: translateY(0px);
    }
    70% {
        transform: translateY(-10px);
    }
    100% {
        transform: translateY(0px);
    }
}

